Hi all.   I have a Rock64 board with 1GB RAM. I downloaded this image https://dl.armbian.com/rock64/Ubuntu_xenial_default_nightly.7z and I wrote it on the SD card (Samsung EVO 16GB) using both Etcher and dd command. But when I power the board, all 3 leds light up and remains on, nothing else happens.   I have the same behaviour with the 0.6.0 stretch-minimal image downloaded here https://github.com/ayufan-rock64/linux-build/releases The only images that works ar